MOOKEERF 50ft KMR400 PL259 Male to Male Coaxial Cable - Low Loss

The MOOKEERF 50ft KMR400 PL259 Male to Male Coaxial Cable provides a reliable connection for radio operators needing a long run between transceivers and antennas. It addresses signal degradation over extended distances by keeping signal loss under 2.8dB at a 450MHz frequency, while maintaining an SWR of 1.25 or lower. This makes it an effective choice for CB, amateur HF, or marine VHF radio setups.

Internally, the cable pairs a copper clad aluminum center conductor with dual outer shielding made of aluminum foil and tinned copper braid. This construction shields against outside interference while protecting against oxidation over time. On the outside, a waterproof PVC jacket protects the assembly, making the cable suitable for running outdoors to base stations or marine antennas.

Durability at connection points is reinforced by 2.2-inch heat shrink tubing built with internal adhesive. This longer sleeve secures the junction between the KMR400 cable and the UHF male connector, stopping the ends from pulling free under strain. In addition, the connector shells use nickel-plated copper to resist corrosion and oxidation.

Because it comes pre-terminated with UHF male (PL259) connectors at a fixed 50-foot length, it is specifically configured for equipment using standard UHF jacks and cannot be easily shortened without installing new fittings. The center conductor is copper clad aluminum rather than pure solid copper, which is a structural detail worth keeping in mind for specific conductivity preferences.

Verdict: This 50-foot KMR400 coaxial cable is a dependable, weather-ready option for radio hobbyists and boaters needing low-loss connections for CB, ham, or marine VHF setups. It offers solid shielding and reinforced connector ends for long-distance outdoor runs.

• Length: 50 feet
• Cable Type: KMR400
• Connector Type: PL259 UHF Male to Male
• Center Conductor: Copper Clad Aluminum
• Outer Conductor/Shielding: Aluminum foil and tinned copper braid
• Jacket Material: Waterproof PVC
• Connector Shell: Nickel-plated copper
• Heat Shrink: 2.2-inch with built-in adhesive
• Signal Loss: Less than 2.8dB at 450MHz
• SWR: ≤ 1.25

A great fit if you:

• Need a ready-to-use 50-foot feedline for CB, HF ham, or marine VHF radios.
• Run antenna lines outdoors and require a waterproof PVC jacket.
• Want low-loss performance with an SWR of 1.25 or lower at high frequencies.
• Value reinforced connector joints that resist pulling out under tension.

Consider something else if you:

• Need a very short jumper cable rather than a 50-foot run.
• Require pure solid copper inner conductors for your specific radio installation.
• Use radio gear that requires connector types other than standard PL259 UHF male ends.

Can this cable be used outside?
Yes. The cable has a waterproof PVC outer jacket and nickel-plated copper connector shells that resist corrosion, making it suitable for outdoor environments.

What devices work with this cable?
It connects to CB ham radios, HF amateur radios, marine boat VHF radios, antennas, SWR meters, surge protectors, and walkie-talkies equipped with compatible UHF female ports.

What are the signal loss specifications?
At a 450MHz signal frequency, the 50-foot cable features a signal loss of less than 2.8dB and an SWR of 1.25 or less.

How are the connectors secured to the cable?
Each UHF male connector is secured with a 2.2-inch heat shrink tube containing internal adhesive to keep the connector firmly attached and prevent it from pulling loose.